A2K450R Ferraz Shawmut||Mersen A2K-R Series Low Voltage - Essential Electric Supply
A2K450R Ferraz Shawmut||Mersen A2K-R Series Low Voltage - Essential Electric Supply

Cutler Hammer A2K450R - RK1 Class Fuse 400A (200kA AIC)

Cutler Hammer
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Cutler Hammer A2K450R is a current-limiting fuse designed for high-level short-circuit protection in industrial power distribution systems. It features a 400A current rating and a 250V AC voltage rating, providing reliable operation under standard low-voltage conditions. The fuse is constructed as a single-barrel RK1 class device with a 2.06-inch diameter and a weight of 4 lb, engineered for durability. It complies with industry standards for current-limiting fuses, offering an interrupting rating of 200,000 amperes at 250V AC to safeguard electrical components. Typical applications include protecting motor circuits, feeders, and branch circuits where high fault current availability is present.

Key Features & Specifications
  • Type: A2K-R Series, RK1 Class, Single Barrel, Current-Limiting Fuse
  • Voltage Rating: 250V AC
  • Current Rating: 400A
  • Dimensions: 2.06" Diameter
  • Standards: Industry Standard for RK1 Fuses
  • Applications: Industrial Motor Protection, Feeder & Branch Circuit Protection
  • AIC rating: 200kA @ 250V AC
  • Class Rating: RK1
  • Barrels: 1
  • Weight: 4 lb


Product Identification
  • UPC: 078200191539
  • GTIN: 00782001915391